HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1600

PERIOD COVERED:  0000Z (UTC) 03/27/96 - 0000Z (UTC) 03/28/96

Daily Status Report as of 088/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6187 (WF/PC-2 Cycle 5 Calibration: Earth Flat)

       The WF/PC-2 was used to make Earth streak flat calibration images. =
 These streak flats will be used to produce flat fields, to map the OTA =
illumination pattern and, in combination with other data, to produce new =
superflats.  The observations were completed as planned, and no problems =
were reported.

   1.2 Completed GHRS/2 5860 (Detection of ^11B/^10B and Galactic =
Chemical Evolution)

       The High Resolution Spectrograph (Side Two) was used in the Echelle=
 Mode to make spectrographic observations of star HD102870 to study the =
isotope-split Boron-11 and Boron-10 lines at 2090 A0.  A wavelength =
calibration observation was also taken.  The observations were completed =
as planned, and no problems were reported.

   1.3 Completed WF/PC-2 6332 (The Circumnuclear Regions of Seyfert =
Galaxies LRF Part: cycle 4 Medium)

       The WF/PC-2 and the linear ramp filter (LRF) were used to make =
observations for the circumnuclear regions of Seyfert galaxy NGC-4388 in =
both emission and continuum.  From the data the PI expects to derive =
sufficient evidence to confirm or refute a suggested model of Seyfert =
Type 2 galaxies.  The observations were executed as scheduled, and no =
anomalies were noted.

   1.4 Completed FOS/RD 6165 (FOS Cycle 5: Discriminator Test)

       This is a calibration proposal, which is being used to verify the =
optimal discriminator settings for the Faint Object Spectrograph.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.5 Completed FOS/RD 6089 (Eclipse Mapping and Tomography of the UV =
Emitting Region of DQ Her)

       The Faint Object Spectrograph (Red Side) was used to make rapid =
mode ultraviolet observations of the eclipsing binary star 14Aur-C in =
order to do eclipse mapping and tomographic studies.  Observations were =
made of both the ultraviolet continuum and emission lines.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.6 Completed FOS/RD 6167 (FOS Cycle 5: Dark Monitoring)

       The Faint Object Spectrograph (Red Side) was used to make several =
dark calibration images.  All exposures were internals.  All spectra was =
done in the image mode.  The observations were completed as planned, and =
no problems were reported.

   1.7 Completed WF/PC-2 6344 (Low - Mass Binaries in the Hyades - =
Completing the Survey)

       The WF/PC-2 was used to make observations of the low mass binary =
star RHY077 (M-Class Dwarf Stars) which is located in the Hyades Cluster. =
 The FHST update that occurred just before this proposal failed, but no =
effect on the observations was reported.  No further anomalous activity =
was noted.

   1.6 Completed WF/PC-2 6102 (Chemical Evolution and History of Star =
Formation in the Large Magallanic Cloud)

       The WF/PC-2 was used to make observations of the "Bar" region in =
the Large Magellanic cloud to study the chemical evolution and the =
history of star formation in that region.  The goal is to observe =
individual field stars near the main sequence turnoff in order to study =
the large scale processes that control star formation and nucleosynthesis =
in galaxies.  The observations were executed as planned, and no anomalies =
were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 8
                                        Successful : 7

       As documented in HSTAR 5551, the acquisition at 088/073646Z failed =
to guidance on FGS #3 only.

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates: 

                              Scheduled : 19
                             Successful : 18

       The update at 087/1523Z failed.

   2.3 Operations Notes: 

       Due to maintenance work being performed in the MOR/SMOR area, HST =
operations transitioned to the SAMS backup facility yesterday from =
approximately 8:00 a.m. until 4:00 p.m.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH